var viewport = {
	getWinWidth: function () {
		this.width = 0;
	if(window.innerWidth) this.width = window.innerWidth - 18;
	else if(document.documentElement && document.documentElement.clientWidth)
		this.width = document.documentElement.clientWidth;
	else if(document.body && document.body.clientWidth)
		this.width = document.body.clientWidth;
},
getWinHeight: function () {
	this.height = 0;
	if(window.innerHeight) this.height = window.innerHeight - 18;
	else if(document.documentElement && document.documentElement.clientHeight)
		this.height = document.documentElement.clientHeight;
	else if(document.body && document.body.clientHeight)
		this.height = document.body.clientHeight;
},
getScrollX: function () {
	this.scrollX = 0;
	if(typeof window.pageXOffset == "number") this.scrollX = window.pageXOffset;
	else if(document.documentElement && document.documentElement.scrollLeft)
		this.scrollX = document.documentElement.scrollLeft;
	else if(document.body && document.body.scrollLeft)
		this.scrollX = document.body.scrollLeft;
	else if(window.scrollX) this.scrollX = window.scrollX;
},
getScrollY: function () {
	this.scrollY = 0;
	if(typeof window.pageYOffset == "number") this.scrollY = window.pageYOffset;
	else if(document.documentElement && document.documentElement.scrollTop)
		this.scrollY = document.documentElement.scrollTop;
	else if(document.body && document.body.scrollTop)
		this.scrollY = document.body.scrollTop;
	else if(window.scrollY) this.scrollY = window.scrollY;
},
getAll: function () {
	this.getWinWidth(); this.getWinHeight();
	this.getScrollX(); this.getScrollY();
	}
}
